Improved comparison, equality, string parsing performance, and improved NuGet metadata

[Seramis]

Description

Overhauled the benchmark suite to eliminate JIT dead-code elimination (no-ops) caused by static data reuse. Leveraging the corrected benchmarks, identified and implemented critical optimization paths for equality, comparison, and string parsing.

Changes

1. Benchmark Overhaul (Anti-JIT Optimization)

• Problem: Previously, benchmarks operated on 1 or 2 static readonly instances, allowing the JIT compiler to optimize operations into no-ops.
• Solution: Replaced static instances with a pre-allocated pool of 1024 distinct ULID pairs. Benchmark iterations now loop through this dataset sequentially to force actual execution.
• Dataset Composition: To ensure comprehensive branch coverage, the 1024 pairs are evenly split (256 pairs each) across four scenarios:
  • Completely random pairs.
  • Identical pairs (absolute equality).
  • Partial matches (first 6 bytes identical / timestamp collision).
  • Near-matches (only the final byte differs).

2. Performance Optimizations

Fixed performance bottlenecks exposed by the new benchmark suite. Improved implementations for:

• Equality Checking (Equals, ==, !=)
• Comparison (CompareTo, >, >=, <, <=)
• String Parsing (Parse, TryParse, implicit string to Ulid conversion)

3. Documentation & Metadata

• Updated README.md with the revised benchmark results.
• Refactored NuGet package metadata to improve SEO, discoverability, and tagging relevancy.

Type of Change

• Bug fix (non-breaking change that fixes an issue)
• New feature (non-breaking change that adds functionality)
• Breaking change (fix or feature that would cause existing functionality to change)
• Documentation update
• Other (please specify): Performance optimization

Checklist

• The PR is submitted to the correct branch (main).
• My code follows the project's coding style. (.editorconfig)
• I have commented my code, particularly in hard-to-understand areas and public interfaces.
• I have added or updated tests for the changes I made.
• All new and existing tests passed.
• I have updated the documentation where applicable.